Gorman-Rupp Pumps SE2C3 115V 1P 1483930 and up - Manual (Page 22)

SE SERIES OM−06492
TROUBLESHOOTING PAGE D − 4
male connector sleeves before reassem-
bling the pump head to the motor housing.
Capacitor
The start capacitor, located in the head of the
pump, is designed to split the electrical phase dur-
ing the initial power surge at motor startup.
Before disconnecting the capacitor leads,
discharge the capacitor; use a screwdriver
with an insulated handle, and place the
blade across the two terminals of the ca-
pacitor to short the terminals.
Zero-balance the ohmmeter set to read RX100K,
and test the capacitor as follows:
a. See Figure E-1 in Section E, and disconnect
the leads to the capacitor.
b. Place a test lead against each of the capaci-
tor terminals for a few seconds. If the ohm-
meter needle moves toward zero, then slow-
ly drifts back to the left, the capacitor is
good. If the needle remains at infinity (
1) the
capacitor is open. if the needle remains at
zero, the capacitor is shorted. In either case,
the capacitor must be replaced.
c. Check for grounding by touching one test
lead to the capacitor case and the other lead
to each of the capacitor terminals in turn.
The ohmmeter should read infinity (
1); if it
does not, the capacitor is grounded and
must be replaced.
d. After the capacitor has been checked, re-
connected the capacitor leads.
Figure D-1. Wiring Diagram